We're making your nails strong beautiful with a high-shine extra hard finish that lasts with this nail treatment and top coat in one! Get your nails looking and feeling stronger with breakage prevention, plus the strength of Polymer Coating Technology™ over color to seal and strengthen. For strong nails and an extra hard manicure that lasts, apply 1 coat of Sally Hansen Advanced Hard as Nails Strengthening Top Coat™ to seal and strengthen at home.